Portable self-contained electric lamp.



F. W. MEBOLD. PORTABLE SELF CONTAINED ELECTRIC LAMP.

APPLICATION FILED FEB.27,19.5.

htented Jan. 11, 1916.

have invented certain OF ST. LOUIS. lilllSSG Rl.

INED ELECTRIC LAMP.

Application filed February 27. 1915.

. (1Z1 Mimi]? it may roam/v2 Be it known that It lhuumntcn W. )litnoLn, a citizen ot the tinted c tates of America.

residing at Stfliouis. State of Missouri.

new and useful improvements in Portable relt- (Tontained Electric Lamps. of which the "following" is a specification. V

The present invention relates to improvements in portable self contained electric lamps. and is designed a; a safety lamp at tachment. i

The primary object of the invention the provision of an attachment to be used in conjunction with an ordinary electric dr battery. and the attachment so constructed that it is ap li able for use in connection with such a dry battery as obtainaljile in the open market.

The invention cons sts in certain novel combinations ann arrangenwnts of parts to provide an attachment for use with a dry battery. as will be hereinafter more fully described and claimed.

In the accompanying drawings 1 have illustrated tw complete examples of the phvsical embodiment of my invention showing the best modes I have so far devised for the practical application at the principles of the invention.

Fig ire l is a perspective view r'howing' the attachment complete as applied to a or battery of standard construction. Fig. 2 is an enlar 'ectional view of the attachts connection with the t- 1 Fig. ls a top plan view t Fig. 1 01 ed.

of tie base n ate and the switch of the clevlce. Fl perspective view showing the base detached. illustrating a reflector as integral with the base plate. Fig. side 'ew showing a mothticatnm of the 13 den F n. s a sec tional signed t dry batter: and in the Specification of LettersPatent.

vrng a portioi of the tlevlce Patented Jan. 1 1916. Serial No. 10.930.

Mv illuminating device designed "for attachment to the dry battenv by means of two posts 1'. and i. For this purpose 1 lo the base plate l. which is preicrablv rass. All other operating" parts ol the attachni nt are also prctcrablv of rass. but may be or" other suitable material. and the parts are stamped out or wrought into proper form by suitable machines. This base plate 2 is fashioned with an elongated l( t 5 and an orilice or ope the 3. the slot 5 being adapted to pass; over the post 2 and the orilice fl is adapted to pass over the post liocatcd between the slot 5 and the orifice (3 is a transversely extending opening 7 in the date l. and the plate is further provided with oppositely extending wings S. each of which is fashioned with a bent-up perforated ear 9. and. as clearlv seen in Figs. 1 and 2. these perforated airs have the bail or handle 1!) swiveled therein. At the front. of the plate 4. the metal is bent dmvnwardly and formed as a conical shaped cup 11 in a plane appmximatclv at right angles to the plane of the plate l. This cup is formed with an open boss 12 which interior-l3 threaded. as at U. and r. the cup is illustrated as a reflector. the inner face of the cup b ng provided with a coating or polished surface to act as a rctlcctor. in Fig. 1, a rel factor it is illustrated. and in Fig. .2 an incamlescent light bulb 17 is shown as threaded into the boss ot' reflector cup 1L v he attachment is fixed to the post 2 by means of a thumb nut 1 threaded on to the Mist and the thumb int 1? is employed on lie post 3 to clamp tie attachment at the ircumference of the drv battery. In conlQJlllOll with he attachment for the post I employ a switch device. and this device connn'ises a turn plate 19 with the handle 19. and an insulating washer 2O interposed between this turn plate and the base plate. in eyelet is provided to attach the turn plate and washer at the upper side of the base plate, and this device also attaches the ill spring" plate 22 and insulating washer atth underside of aid base plate. Thus. the

eyelet 2i acts as a rivet to hold the washers Q 2O. 21'. 2 and the spring plate to the and is provided bent tongue. 2%. This as clearly shown in tongue 24 normally projects the switch is Opened, the turn plate is in position to be contacted by the incan-.

descent lamp 15 in order to make connection to complete the circuit.

From this description taken in connection with the drawings, it will be apparent that the electric circuit is'made from the battery through the post 2, the thumb nut. 16, and

the base plate l to the cup 11, and thence togthe light 15,. and the 'current returns through the spring plate 522-, the spring tongue 2%, the switch or turn plate 18, the eyelet 21, and

The lamp 15 will, of course, remain lighted as long as the switch 18 is turned to close the circuit, but in addition to this feature,- the device may be used as aflash light apparatus. For this purpose the spring plate 22 may be pulled backwardly to break the contact between the lamp .and the boss'25, and released to form a flash light of the device. In this connection the device is particularly meritorious, because it can be carried by the hand through the medium of the cell 1, and the forefinger of this hand may be employed to bend the spring plate back out of contact, and operate the device as a flash light.

Another meritorious feature of the invention resides in the single piece base plate embodying the reflector and suspending :means whereby the integral member pera reflector, a base forms the functions of I It will ofplate, and a carrying device. course placeable, or rather the attachment is re placeable to a one wears out.

In Figs. 5 and 6,. a novel form of handle is shown comprising the arched plate 10 which is integral with the plate 4* and is binding post and nut 3 andll'.

, binding posts,

be understood that the battery is refresh battery when the old turned to the front over the switch 19. The end of the handle 10 is provided with a reduced end or tongue 10 which is passed through a slot l in plate 4 and then turned slightly to lock itin the slot and thus lock the handle to its plate. This construction reduces the cost of the device and is desirable in some instances.

From the above description, it will be apparent that I have provided a novel and meritorious apparatus, applicable for use with 'standarddry batteries, and which is a desirable, etiicient, and economical device for performing its required functions.

hat I claim is: 1. The combination with a dry battery and its binding posts, of an attachment comprising a base .plate having a reflector portion and an incandescent lamp secured therein,

an insulated eyelet 'on the base plate to receive one of the binding posts and said base plate slotted to receive the other post, an' insulated spring plate on the eyelet having a tongue, and a switch on the eyelet to co-act with said tongue.

2. The combination with a dry battery and its two binding posts,'of a base'plate fashioned with a reflecting cup, an incandescent lamp threaded through said cup, a switch plate, a spring plate, an eyelet fastening these two members above.and below the base plate respectively, and a tongue on the spring plate projecting through a slot n the base plate in position to contact with the switch plate, substantially as described.

3. The combination with a battery and its of a base plate fashioned to support. an incandescent lamp, a switch plate, a spring plate and an eyelet fastening these two members above and below the base plate respectively, and a tongue on the springplate projecting through a slot in the base plate in positionto contact with the switch plate.

r In testimon whereof I aflix my signature in presence 0 two witnesses.

. FREDERICK W. MEBOLD. Vitnesses GEORGE MEYER, "WM J. DELLERT. 

